Patent US4175678A successfully refreshed from Google Patents.
US4175678A
Expired / Lapsed
US
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Explosion proof device for a pressure accumulator having a valve portion
Assignee: Individual
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Filing: 1977-05-06
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Granted: 1979-11-27
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Expires: 1997-05-06
Abstract
Abstract An explosion proof device for a pressure accumulator, such as an aerosol container, having a valve portion comprising an action segment fixed in the vicinity of the valve portion, a part of such action segment being set in the state wherein engagement with a valve of the valve portion occurs, whereby the action segment can open the valve of the valve portion intermittently or permanently by displacement of the valve portion and/or of the action segment itself, being caused by the temperature of the atmosphere in which the aerosol container is disposed.
Inventors
- 👤 Motoo Fukuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:44
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/75
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
In a pressure accumulator having a valve member adapted to be opened for exhausting gas and other materials from said accumulator by movement of said valve member in a given direction against a biasing force tending to maintain said valve in a closed position, the improvement comprising: means disposed between said accumulator and said valve member, being responsive to heat of a predetermined degree, for automatically operating said valve member to open said valve for exhausting gas and other material from said accumulator, said means for operating said valve member comprising a bimetallic plate having an opening therethrough for receiving said valve member.
Claim 2
Dependent Claim
103 words
In a pressure accumulator having a valve member adapted to be opened for exhausting gas and other materials from said accumulator by movement of said valve member in a given direction against a biasing force tending to maintain said valve in a closed position, the improvement comprising: means disposed between said accumulator and said valve member, being responsive to heat of a predetermined degree, for automatically operating said valve member to open said valve for exhausting gas and other material from said accumulator, said means for operating said valve member comprising a bimetallic plate having an opening therethrough for receiving said valve member.
Claim 3
Dependent Claim
28 words
A pressure accumulator as set forth in claim 1, wherein said bimetallic plate means for operating said valve member is intermittently operable, according to increasing and decreasing temperatures.
Claim 4
Dependent Claim
44 words
A pressure accumulator as set forth in claim 1, wherein said means for operating said valve member and being responsive to heat comprises a metal plate having an opening therethrough for receiving said valve member and is operative to permanently open said valve member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |